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现行 EN ISO 14146:2024
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Radiological protection - Criteria and performance limits for the periodic evaluation of dosimetry services for external radiation (ISO 14146:2024) 辐射防护.外部辐射剂量测定服务定期评估的标准和性能限值(ISO 14146:2024)
发布日期: 2024-07-17
实施日期: 2024-07-17
本文件规定了用于定期验证个人和/或区域(即工作场所和/或环境)剂量测定服务性能的剂量测定和组织标准以及测试程序,以及用于个人(个人)和/或地区(即工作地点和/或环保监测)的剂量计。 注:剂量测定服务供应商的质量取决于批准的(经过型式试验的)剂量测定系统的特性、工作人员的培训和经验,以及校准程序和质量保证计划。 根据本文件的性能评估可以由剂量测定服务机构进行,以证明满足规定的性能要求。 本文件中使用的辐照质量代表了使用服务中的剂量计监测的放射性活动中预期或模拟工作场所现场的暴露情况。 本文件适用于个人和区域剂量计,用于评估注量加权平均能量在8keV和10MeV之间的外部光子辐射、注量加权均值能量在60keV和1.2MeV之间的β辐射和注量加权中值能量在25.3meV之间的中子辐射,即kT=25.3meV和200MeV的麦克斯韦能量分布的热中子。 它涵盖了需要实验室处理的所有类型的个人和区域剂量计(例如。 g.热释光、光激发光、辐射光致发光、轨道探测器或摄影胶片剂量计),涉及连续测量或以固定时间间隔(如几周、一个月)定期重复测量。 用于剂量测量的主动直接读取以及半被动或混合剂量计,如直接离子存储(DIS)或硅光电倍增管(SiPM)剂量计,也可以根据本文件进行处理。然后,它们被视为被动的,即剂量测定服务读取它们的指示值并将其报告给评估组织。 在本文件中,校正指示(校正指示)值是剂量测定系统以剂量当量(Sv)为单位给出的评估算法最终结果(例如软件显示、打印输出)。 环境剂量计通常指示量H*(10),但它们还可以指示量H'(3)、H'(0,07)、空气kerma、Ka或吸收剂量D。所有这些剂量计也可以根据本文件进行处理。如果标明Ka或D(单位为Gy),则本文件中以Sv表示的剂量值应解释为以Gy表示的等效值。
This document specifies the dosimetric and organizational criteria and the test procedures to be used for the periodic verification of the performance of dosimetry services supplying personal and/or area, i.e. workplace and/or environmental, dosemeters used for individual (personal) and/or area, i.e. workplace and/or environmental monitoring. NOTE            The quality of a supplier of a dosimetry service depends on both the characteristics of the approved (type‑tested) dosimetry system and the training and experience of the staff, together with the calibration procedures and quality assurance programmes. The performance evaluation according to this document can be carried out by a dosimetry service to demonstrate the fulfilment of specified performance requirements. The irradiation qualities used in this document are representative for exposure situations that are expected or mimic workplace fields from the radiological activities being monitored using the dosemeters from the services. This document applies to personal and area dosemeters for the assessment of external photon radiation with a fluence-weighted mean energy between 8 keV and 10 MeV, beta radiation with a fluence-weighted mean energy between 60 keV and 1,2 MeV, and neutron radiation with a fluence-weighted mean energy between 25,3 meV, i.e. thermal neutrons with a Maxwellian energy distribution with kT = 25,3 meV, and 200 MeV. It covers all types of personal and area dosemeters needing laboratory processing (e.g. thermoluminescent, optically stimulated luminescence, radiophotoluminescent, track detectors or photographic-film dosemeters) and involving continuous measurements or measurements repeated regularly at fixed time intervals (e.g. several weeks, one month). Active direct reading as well as semi-passive or hybrid dosemeters, such as direct ion storage (DIS) or silicon photomultiplier (SiPM) dosemeters, for dose measurement, can also be treated according to this document. Then, they are treated as if they were passive, i.e. the dosimetry service reads their indicated values and reports them to the evaluation organization. In this document, the corrected indicated (corrected indication) value is the one given by the dosimetry systems as the final result of the evaluation algorithm (for example display of the software, printout) in units of dose equivalent (Sv). Environmental dosemeters usually indicate the quantity H*(10) but they can, in addition or alternatively, indicate the quantity H'(3), H'(0,07), air kerma, Ka, or absorbed dose, D. All these dosemeters can also be treated according to this document. If Ka or D is indicated (in Gy) the dose values in this document stated in Sv shall then be interpreted as equivalent values in Gy.
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归口单位: CEN/TC 430
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